Selecting system.



. 0. A. DANIELSONQ SELECTING SYST EM.- APPLICATION FILED MAR. 20, 1914.

1371,4 15. Patented Feb.15,1916.

W/fnsses: //7ve/7fb Oscar A. Danie/Jon. v

osoan A; DANIELSON, or new Yon-K, N. Y., AssIeNoR, Y m ssus assrenmnnrs; TO wnsrnnn ELECTRIC COMPANY, mconrona'rnn, A conrona'rron or NEW YORK,

' SELECTING SYSTEM.

1,171,415; I I i i\ To bil l witom it may camera:

Be 'itknown that I, OSCAR A. DA vmLsoN, a citizen of the United States, residing at New York city, in the county 01- New York.

This invention relates to selecting systems and is particularly adapted for use in printing telegraph receivers although not exclusively limited to such use, and its'principal object is'to provide an improved system of this {typewherein one selection maybe retainedand another selection produced simultane'ously. To this end a system with electromagnetic devices for effecting the actuation ofselective apparatus is provided, with means'for altering the circuit arrangements ;.of both the devices and the apparatus, \vhercby the cause and effect of their'operation may overlap.

Theabove and vention will be fully set forth in the following description and claims, and will-be more readilyunderstood by reference to the accompanying drawing in which the system is shown diagrammatically.

The transmitting and preliminary selecting apparatus with .which the system of this invention is adapted to coiiperate, may be of any suitable type, one .such being that disclosed in Patent No. 1,086,899, dated Febru- 'ary 10, 1914, to' Oscar A. Danielson. In this patent are shown means forselectively closing any one of six second'a ry circuits.

The six secondary selecting circuits may be represented by the six conductors 1, 2, 3, 4, 5, 6 and it is by the completion of one or more of the'first five and the sixth of them that-a selection is accomplished. In each of the conductors 1 to 6 inclusive is a relay 11.

i to 16 inclusive which controls the energization of corresponding selecting devices or magnets 21 to 26 inclusive. 'An overlap relay 30 is provided through whose armatures 31 and 32 the energizing circuit of the ma gnets 21 to 26 and the holding circuits of the relays 11 to 16 may be so altered that, after causing the energization of. certain magnets, I the relays may be returned to normal and again selected Without interfering with the previously operated magnets; ThlS overlapping of functions allows of very rapid re- Specification of Letters Patent.

other objectsof this inv ceiv-ing, and translation of signals, for one signal combination may be nitiat ng a new SGlGClZlOILWhllG the operation selected by the I A WI E Patented Feb. 15, 1916.

5 Application filed March 20, 1914. Serial 110,825,970. I

next preceding signal combination is being completed.

Whenever any of the circuits including conductors 1 to 5 inclusive is completed, the

corresponding relays lljto 15 inclusive are energized by currentflowing therethrough from'battery 35. The'reupon the selected relays 11 to 15 attract both of their armatures, the upper completing circuits forthe corresponding magnets '21 to 25' from battery 40, armature 31 of overlap relay 30, :upper a r. matures of operated relays 11 to 15, andactuating windings of corresponding magnets21 to 25 to ground at 41. The magnets 21 to 26 inclusive. are each provided-with a holding winding includedin a circuit from batten-yea"), armature of a clear-out relay 46,

condii'c'tor 47 to ground 48, after passingiin series through all'of the holding windings of magnets 21 to The current flowing through this circuitis insuliicient to causemagnets 21 to 26 toimiti'at'e the operation controlled byeach, but-is suflicient to hold the magnets to their work after the energizing WllldlllgS have been energized. The a '7 lower armatu res of the actuated selecting relays llto 16 complete holding circuits therefor from grounded battery 35, windings, front contacts and lower armatures of relays 11 to 16, and a back and movable contacts of magnet 26 to ground.

Certain of the selecting relays .11 to 15 and corresponding magnets 21 to 25 having been actuated and held, as hereinbefore described; and whatever operations are to be controlled by magnets 21 to 25 having been initiated, the sixth circuit including conductor 6 is closed. Relay 16 attracts'its armatures causing the completion of an energizmg circuit for its magnet 26 and a holding circuit for itself.

Relay 26 attracts its armature 50, where- 'upon a circuit is completed from grounded battery 40, overlap relay 30, armature 50 and movable contact of magnet 26 to ground, causing the overlap relay 30 to attract its armatures 31 and 32. The previouslytraced holding circuit for relays 11 to 16 is broken at the fixedand movable contacts of magnet 1 26, whereupon the selecting relays release -their armature's and return to normal ready to receive the next selection. The operated magnets 21 to and magnet 26, however, do not become inoperatively. decncrgized, due to the previously described holding circuit. The attraction of the armature 31 or overlap relay 30 opens the previously traced energizing circuits for the magnets 21 to '26 so that the previously selected arrangement of these magnets cannot be disturbed .by a subsequentenergization of relays 1]. to unless the first cycle is completed, when the verlap rela y'SO will. be deenergized.

the relays ii to holding circuit for all the The attraction or" armature I of overlap relay prepares a new holding-circuit for the relays. 35, windings, front contact and armature of 16, front contactand arina ture 32 of overlaprelay 30 to ground."

After thecompletion of all of the operations initiated by magnets 21to :26, means (not shown) causes the energization of the clear-out relay 46.. The attraction of the armature of clear-out relay 46 opens the magnets 21 to 26, whereupon these magnets are completely denergized. Relay 2o releases its armature 50, whereupon the energizing circuit for overlap relay 30 is opene and the first traced holding ci is reestablished. It is inip'ortant'that upon the release of armature 50, the movable and fixed contacts of magnet 26 become engaged prior to the disengagen ent of armature 50 and the movable contact in order that any holding circuits for relaysll 'to 16 which i may have been established will not be broken.

'llhe deenergization of overlap relay30 prepares the previously traced actuating circuits for magnets 21 to 26 so that in case a subsequent selection of relays 11 to 16 has been made, the energizing circuits of the 11. to 16 from grounded battery ant for the relays llto 16 1 a .holding circuit therefor,

chosen magnets '21 to 26 will be completed si innltaneously.

-Wlll10lll1 affecting said devices, and means for restoring the circuit conditions so that any of said relays which have so functioned may affect the corresponding said devices.

selecting system comprising a plurality or selecting relays, an

energizing and a plurality of selecting devices, actuating circuits for said devices controlled by said relays, and means for altering the circuit conditions of said .relays and devices and establishing new circuit conditions for said relays, whereby the operative functions oi said relays and said devices mayovi Lap.

3. A. selecting system comprising a plurality of selecting relays, a. plurality of se lecting devices each controlled by a corresponding said relay, circuits influencing the action of said relays and cooperating with said relays and said devices, and means for altering the condition of said circuits for allowing said relays to operate without atfecting saiddevices and then cause the relays which have so operated to subsequently adect said devices.

In witness whereof, I hereunto subscribe my name this 17th day of March, A. 1).

. OSCAR .A. DANIELSON.

Witnesses: I e

F). EnLnu, 1 NiNUN E. PU'IIII'IT. 

